15432055100 has 216 divisors, whose sum is σ = 42747264000. Its totient is φ = 4781616000.

The previous prime is 15432055087. The next prime is 15432055109. The reversal of 15432055100 is 155023451.

It is a self number, because there is not a number n which added to its sum of digits gives 15432055100.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15432055109) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 10294151 + ... + 10295649.

It is an arithmetic number, because the mean of its divisors is an integer number (197904000).

Almost surely, 2^15432055100 is an apocalyptic number.

15432055100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 15432055100, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (21373632000).

15432055100 is an abundant number, since it is smaller than the sum of its proper divisors (27315208900).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

15432055100 is a wasteful number, since it uses less digits than its factorization.

15432055100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1729 (or 1715 counting only the distinct ones).

The product of its (nonzero) digits is 3000, while the sum is 26.

Adding to 15432055100 its reverse (155023451), we get a palindrome (15587078551).

The spelling of 15432055100 in words is "fifteen billion, four hundred thirty-two million, fifty-five thousand, one hundred".